What's the difference between anchor and keystone?

Anchor


Definition:

  • (n.) A iron instrument which is attached to a ship by a cable (rope or chain), and which, being cast overboard, lays hold of the earth by a fluke or hook and thus retains the ship in a particular station.
  • (n.) Any instrument or contrivance serving a purpose like that of a ship's anchor, as an arrangement of timber to hold a dam fast; a contrivance to hold the end of a bridge cable, or other similar part; a contrivance used by founders to hold the core of a mold in place.
  • (n.) Fig.: That which gives stability or security; that on which we place dependence for safety.
  • (n.) An emblem of hope.
  • (n.) A metal tie holding adjoining parts of a building together.
  • (n.) Carved work, somewhat resembling an anchor or arrowhead; -- a part of the ornaments of certain moldings. It is seen in the echinus, or egg-and-anchor (called also egg-and-dart, egg-and-tongue) ornament.
  • (n.) One of the anchor-shaped spicules of certain sponges; also, one of the calcareous spinules of certain Holothurians, as in species of Synapta.
  • (v. t.) To place at anchor; to secure by an anchor; as, to anchor a ship.
  • (v. t.) To fix or fasten; to fix in a stable condition; as, to anchor the cables of a suspension bridge.
  • (v. i.) To cast anchor; to come to anchor; as, our ship (or the captain) anchored in the stream.
  • (v. i.) To stop; to fix or rest.
  • (n.) An anchoret.

Example Sentences:

  • (1) The haplotype of the recombinant X chromosome of each of 241 backcross progeny has been established using the X-linked anchor loci Otc, Hprt, Dmd, Pgk-1, and Amg and the additional probes DXSmh43 and Cbx-rs1.
  • (2) The popularly used procedure in Great Britain is that in which a sheet of Ivalon sponge is sutured to the sacrum and wrapped around the rectum thus anchoring it in place.
  • (3) The company also confirmed on Thursday as it launched its sports pay-TV offering at its new broadcasting base in the Olympic Park in Stratford, east London, that former BBC presenter Jake Humphrey will anchor its Premier League coverage.
  • (4) Since the introduction of osseointegrated titanium implants for bone-anchored facial and dental prostheses, an increasing number of irradiated patients are being treated with this technique.
  • (5) The brain enzyme did not contain components characteristic of the glycolipid anchors of erythrocyte acetylcholinesterases.
  • (6) Our findings support the proposal that bcd transcripts are selectively recognized and trapped as they enter the anterior tip of the oocyte, and suggest that this localization process is mediated by anchored sequence-specific receptors in the oocyte cytoplasm.
  • (7) Sanders, the Vermont senator and self-described democratic socialist, first answered questions from Fox News anchor Bret Baier over his comments in Sunday’s debate that white people “don’t know what it’s like to be living in a ghetto”.
  • (8) A truncated anchor-minus form of the G2 glycoprotein was found to be secreted into the culture medium, but was retained in the Golgi complex when coexpressed with the G1 glycoprotein.
  • (9) Major histocompatibility complex (MHC) class 1 molecules that were either transmembrane- (H-2Db) or glycosylphosphatidylinositol (GPI)-anchored (Qa2) were labeled with antibody-coated gold particles and moved across the cell surface with a laser optical tweezers until they encountered a barrier, the barrier-free path length (BFP).
  • (10) This lipid has a hybrid nature of an archaeal feature in alkyl glycerol diether core portion and an eucaryal feature in the polar head group identical to the conserved core structure (GlcNp(alpha 1-6)-myo-inositol 1-phosphate) of glycosylated phosphatidylinositol which serves as a membrane protein anchor in eucaryal cells.
  • (11) Ultrastructurally these glands had apical microvilli with associated glycocalyx and long anchoring rootlets.
  • (12) This was confirmed by the crystal structures, which also showed that the Gln46 amide is hydrogen bonded to the Phe100 N and O atoms, and tightly anchored in this position.
  • (13) Each of the two chemically identical subunits folds into a three-layer domain anchored by a large six-stranded mixed beta sheet.
  • (14) A group of proteins anchored to the cell by phosphatidylinositol (PI) has recently been identified.
  • (15) In conclusion, the N-linked sugar chains are not required for in vitro activity but required for in vivo activity, acting as anchors for the essential terminal sialic acids.
  • (16) Replacement of the COOH-terminal hydrophobic domain with a signal peptide that normally functions in membrane translocation, or with a random hydrophobic sequence, results in efficient and correct processing, producing GPI-anchored DAF on the cell surface.
  • (17) Since the corresponding keto analogue, N-[(R)-2-benzyl-5-cyano-4-oxopentanyl]-L-phenylalanine (compound 4), does not inactivate the enzyme, it is suggested that the NH in compound 1 is critical for the proper active-site anchoring of the inhibitor for the inactivation process to take place.
  • (18) Facebook Twitter Pinterest Donald Trump questions US citizenship of ‘anchor babies’.
  • (19) This tissue may anchor the lead so that it is difficult, dangerous, or impossible to remove it.
  • (20) The anchoring wire can also be retracted and repositioned.

Keystone


Definition:

  • (n.) The central or topmost stone of an arch. This in some styles is made different in size from the other voussoirs, or projects, or is decorated with carving. See Illust. of Arch.

Example Sentences:

  • (1) If these is the case the Ir gene (genes) would be the Keystone for maintaining the preferential associations of some pseudoalleles in some haplotypes.
  • (2) Oil carried by Keystone will displace heavy crude from Venezuela, Nigeria and other countries that also contribute to global warming, Pourbaix said.
  • (3) The bill, voted through a panel of the house energy and power subcommittee, would compel Obama to over-rule demands for a further review of the project from the Environmental Protection Agency (EPA), and disregard local opposition to the Keystone XL pipeline from landowners along its 1,700-mile route.
  • (4) But two key Liberal positions, on the Keystone XL and on emissions reductions targets, put Trudeau out of step with Obama, who has made climate change the signature issue of his second term in the White House.
  • (5) Former hedge fund manager Tom Steyer took out television ads on Tuesday, the night of Obama's state of the union address , attacking Keystone XL, and other wealthy Democratic donors wrote open letters to the White House seeking to shut down the project.
  • (6) Now that the State Department has just released a final environmental impact report on Keystone XL, which appears to downplay the threat, and greatly increases the odds that the Obama administration will approve the project, I feel I must weigh in once again.
  • (7) Environmental activists opposed to the Keystone XL tar sands pipeline project protest outside the White House in Washington.
  • (8) On the campaign trail, however, Clinton had claimed it would be inappropriate to express her views on Keystone given her recent service in Barack Obama’s administration.
  • (9) The system should include two prehospital and two hospital levels, and the highest level being the keystone of the whole.
  • (10) A Nebraska court has signed off on the proposed route for the Keystone XL, bringing the controversial project a crucial step closer to reality after six years of legal and political fighting.
  • (11) The choice President Obama has faced in recent weeks – whether to approve the Keystone XL pipeline – has been framed as a choice between losing the support of environmentalists or alienating America's key ally, Canada.
  • (12) The company behind the Keystone XL pipeline has asked for its US permit application to be put on hold – a move that would leave the final decision on the controversial tar sands oil project to Barack Obama’s successor.
  • (13) What makes the Keystone XL pipeline different is the scale – and politics.
  • (14) One way TransCanada might get around what Clinton called the Keystone “distraction” and pump more tar sands crude into the US might be the Upland pipeline, which the Natural Resources Defense Council (NRDC) has termed a “mini Keystone” .
  • (15) The virions of CE group viruses (CE, Jamestown Canyon, Keystone, LAC, Melao, SSH, TVT, TAH viruses and South River, an unregistered virus) have three major viral polypeptides, designated G1, G2, and N.
  • (16) And we saw the Assad regime as the keystone in that arc.
  • (17) We look forward to the debate and ultimately a decision by the US administration to build Keystone XL,” the company said in a statement.
  • (18) Greenpeace UK energy campaigner Louise Hutchins said: “The pledge to end dirty coal that David Cameron seems to have casually dropped from his summit speech wasn’t just a footnote but the keystone of any serious policy to clean up Britain’s energy system.
  • (19) Also speaking at the fossil fuel conference in Houston, ExxonMobil chairman and chief executive Rex Tillerson called for the exploitation of Arctic oil and gas reserves and the building of the Keystone XL pipeline to bring oil from Canada’s tar sands to the US.
  • (20) This is absolutely not in our national interest.” The campaign against Keystone XL has become a national movement over the last three years, with environmental activists, Nebraska landowners and hedge fund managers all coming out against the project.